First reason is child athletes can be injured. For example, my neighborhood, Min-su, was a soccer player. Then, his left foot got twisted. Now he is disappeared. Wow! How scared?
Next, they can’t study. For instance, my other neighborhood, Min-suh, was a basketball player. He dedicate basketball, and he was failed his examination. Now, he doesn’t go university.
Finally, they can get stress. My friend, Junho, played badminton and he was very very tired. And he committed suicide. That’s unfortunately!! How sad…